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A TTORNEYS TH: Nonnls Ptrms om mero-urna WASHINGTON. o. c.

UNTED STATES PATENT OFFICE.

WILLIAM HENRY VERCH, OF YONKERS, NEW YORK, ASSIGNOR OF ONE- IfIALF TO JOHN P. FLANIGAN, OF NEW YORK, N. Y.

DUMMY TYPE-WRITER.

SPECIFICATION forming part of Letters :Patent N0. 625,370, dated May 23, 1899.

Application tiled NOVelllbel 3,1898. Serial No. 695,360. (No model.)

To a/ZZ whom, t may concern:

Beit known that LWILLIAM HENRY VERCH, a citizen of the United States, residing at Yonkers, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Dummy Type- IVriters, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invent-ion relates to dummy typewriters; and the object thereof is to provide an improved keyboard for a device of this class having an arrangement of keys and space-bar similar to an ordinary standard type-writer, whereby students in practicing may acquire the same skill and facility of 0peration as they would by using the standard type-writer and at less expense.

The invention is fully disclosed in the following specilication, of which the accompanying drawings form a part, in which- Figure 1 is a plan View of my improved dummy type-writer keyboard, and Fig. 2 a cross-section thereof.

In the drawings forming part of this specication the separate parts of myimprovement are designated by the same numerals of reference in each of the views, and in the practice of my invention I provide a keyboard of the class described comprising a frame composed of the ends 5, which consist of an upright back portion. 6 and downwardly and forwardly inclined front portion 8, each of which is connected at its front end with a rectangular head 9, having a vertical slot 10 formed therein, which opensdownwardly.

In the vertical slots 10 of the heads 9 is placed a vertically-movable space-bar 11, said space-bar being provided at each end with extensions 12, which pass through the slots 10, and screws or bolts 13 are passed upwardly through the extensions 12 and into the upper portions of the heads 9, and the space-bar 11 is free to move vertically on said screws or bolts, and between the extensions 12 of the space-bar and the heads of the screws or bolts 13 are placedspiral springs 14, which hold the space-bar in its highest position.

Connected with the ends 5 of the frame are horizontal bars 15, which correspond in number with the usual rows of keys, the height of said bars increasing from .the front lower bar upwardly and backwardly, and mounted in these bars are a plurality of verticallymovable key-pins 16, the upper ends of which are provided'with keys 17, between which and the bars 15 are placed spiral springs 18, and the lower ends of the key-pins are provided with hooks 19, which prevent the said keypins from being drawn upwardly out of the bars 15.

The springs 18 hold the keys 17 in their highest position, and in the operation of the device the keys 17 -are struck and depressed in the usual manner, and the springs 18 at once return the keys to the normal position. In depressing the keys, as above described, the key-pins 16 pass downwardly through the bars 15 and are at once returned by the springs 18 to the position shown in Fig. 2, and it will be apparent that the operation of the keys 17 and the space-baril is substantially that of the keyboard of an ordinary type-writerl It will thus be seen that I accomplish the object of my invention by means of a device which is simple in construction and operation and which is also comparatively inexpensive, and it will be apparent that changes in and modifications of the construction herein described may be made without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, I claim as new and desire to secure by Letters Patentl. A dummy type writer, comprising a frame composed of the end pieces 5, the horizontal bars 15, and the heads 9 connected with the end pieces, a vertically-movable springsupported bar mounted in said heads and vertically-movable spring-supported keys supported by said horizontal bars, substantially as shown and described.

2. A dummy type-writer, comprising a frame composed of vertical end pieces and horizontal bars connecting said end pieces, and spring-supporting keys provided with pins which pass downwardly through said bars and are provided at their lower ends with held in said bars, the springs by which said keys are supported being mounted between said bars and the heads of the keys, said typewriter being also provided with a verticallymovable spring-supported space-bar, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing Witnesses, this 31st day of October, 1898.

WILLIAM HENRY VERCH.

Witnesses:

F. A. STEWART, C. C. OLsEN. 

